CN214861383U - Insulating oil degassing device - Google Patents
Insulating oil degassing device Download PDFInfo
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- CN214861383U CN214861383U CN202120645325.0U CN202120645325U CN214861383U CN 214861383 U CN214861383 U CN 214861383U CN 202120645325 U CN202120645325 U CN 202120645325U CN 214861383 U CN214861383 U CN 214861383U
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- 238000007872 degassing Methods 0.000 title claims abstract description 119
- 239000007788 liquid Substances 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 238000009849 vacuum degassing Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010913 used oil Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application provides an insulating oil degassing device, includes: a degassing chamber; the lower part of the degassing chamber is provided with a first opening, a starting port of a first pipeline is communicated with the first opening, and a tail end port of the first pipeline is communicated with a transformer oil tank; a second opening is formed in the upper part of the degassing chamber, a tail end port of a third pipeline is communicated with the second opening, and a starting port of the third pipeline is communicated with the outside or a transformer oil tank; a start port of the second pipeline is communicated with the first pipeline, a tail port of the second pipeline is communicated with the third pipeline, and the tail port of the second pipeline is communicated with the third pipeline; a second oil pump is arranged on the second pipeline; the third pipeline is connected with a second valve and a third valve, and the third valve is positioned in the third pipeline; the upper part of the degassing chamber is provided with a third opening, a starting port of a fourth pipeline is communicated with the third opening, and a tail end port of the fourth pipeline is communicated with the outside; and a fourth valve is connected to the fourth pipeline. The technical problems of high use cost and low degassing measurement precision of the vacuum degassing method are solved.
Description
Technical Field
The application relates to the technical field of insulating oil degassing, in particular to an insulating oil degassing device.
Background
The insulating oil plays the role of insulation and cooling for oil-filled equipment during the operation of a power grid, and especially plays an important role in the insulation protection of an oil-filled transformer. And (4) performing a chromatographic analysis experiment on the insulating oil in daily life, measuring the content of characteristic gas, and representing the running condition of equipment. For how to separate out the characteristic gas of the insulating oil, the conventional methods at present are as follows: vacuum method, dissolution equilibrium method (oscillation degassing method, headspace degassing method, membrane separation method).
At present, the dissolution equilibrium method (oscillation degassing method, headspace degassing method and membrane separation method) has the problems of relatively complex operation and device, inapplicability to online equipment (oscillation degassing method), long equilibrium time (membrane separation method) and the like, the vacuum degassing method has high degassing efficiency and relatively accurate result, but the existing vacuum degassing method needs to adopt a vacuum pump to pump out air in a degassing box and then degas air in insulating oil, the vacuum pumping capacity of the vacuum pump is reduced along with the increase of the using times, so the amount of the air pumped out is not accurate, the requirement on the precision of the vacuum pump and a valve is higher, the use cost is high, and the degassing measurement precision is low.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide an insulating oil degassing apparatus, it is high to the required precision of vacuum pump and valve to solve current vacuum degassing method, causes use cost height, and the technical problem that degasification measurement accuracy is low.
In view of this, the present application provides an insulating oil degassing apparatus including: a degassing chamber, a first pipe, a second pipe, a third pipe, a fourth pipe, and a fifth pipe;
a first opening is formed in the lower part of the degassing chamber, a starting port of the first pipeline is communicated with the first opening, and a tail end port of the first pipeline is communicated with a transformer oil tank;
the first pipeline is provided with a first oil pump and a first valve;
a second opening is formed in the upper part of the degassing chamber, a tail end port of the third pipeline is communicated with the second opening, and a starting port of the third pipeline is communicated with the outside or a transformer oil tank;
the start port of the second pipeline is communicated with the first pipeline, the start port of the second pipeline is positioned between the first valve and the first opening, the end port of the second pipeline is communicated with the third pipeline, and the end port of the second pipeline is communicated with the third pipeline;
a second oil pump is arranged on the second pipeline;
a second valve and a third valve are connected to the third pipeline, the second valve is positioned between a start port of the third pipeline and a tail end port of the second pipeline, and the third valve is positioned at the tail end port of the third pipeline;
a third opening is formed in the upper part of the degassing chamber, a starting port of the fourth pipeline is communicated with the third opening, and a tail end port of the fourth pipeline is communicated with the outside;
a fourth valve is connected to the fourth pipeline;
a start port of the fifth pipeline is communicated with the fourth pipeline, the start port of the fifth pipeline is positioned between the start port of the fourth pipeline and the fourth valve, and a tail end port of the fifth pipeline is connected with a gas collecting box;
and a fifth valve is connected to the fifth pipeline.
Further, a spray head is arranged on the second opening;
the spray head is used for spraying the insulating oil in a spray manner in the degassing chamber.
Further, a liquid level sensor is arranged inside the degassing chamber.
Further, the liquid level sensor is provided with a plurality of liquid level sensors;
a plurality of the level sensors are located at different heights inside the degassing chamber.
Further, a temperature sensor is arranged inside the degassing chamber.
Further, a pressure sensor is arranged inside the degassing chamber.
Further, the first valve, the second valve, the third valve, the fourth valve and the fifth valve are all one-way conduction electromagnetic valves;
the conduction directions of the first valve, the second valve, the fourth valve and the fifth valve are from a starting port to a tail end port of the pipeline;
the conducting direction of the third valve is from the tail end port to the initial port of the third pipeline.
Further, the first oil pump is a one-way conduction oil pump;
the first oil pump is positioned between the start port of the second pipeline and the first valve;
the first oil pump is conducted from a start port to a tail port of the first pipeline.
Further, the second oil pump is a one-way conduction oil pump;
the second oil pump is conducted from a start port to a tail port of the second pipeline.
Compared with the prior art, the embodiment of the application has the advantages that:
the insulating oil degassing device provided by the application comprises four steps in the using process:
1. gas washing: opening a first valve, a second valve, a third valve and a fourth valve, starting a first oil pump and a second oil pump, keeping the valves of a fifth valve closed, enabling a part of insulating oil in the transformer oil tank to enter a degassing chamber through a first opening by the first oil pump, enabling a part of insulating oil in the transformer oil tank to enter the degassing chamber through a second opening by the second oil pump, filling the degassing chamber with the insulating oil, and completely discharging the internal air from a fourth pipeline;
2. fixed amount of degassed oil: closing the first valve, the second valve, the fourth valve and the fifth valve, stopping the first oil pump, opening the third valve, keeping the second oil pump running, discharging a part of air in the degassing chamber from the tail end port of the third pipeline, controlling the vacuum degree according to the liquid level reduction amount in the degassing chamber, and enabling the degassing chamber to be in a negative pressure state;
3. and (3) cyclic degassing: closing the first valve, the third valve, the fourth valve and the fifth valve, opening the second valve, stopping the first oil pump, starting the second oil pump, enabling the insulating oil in the degassing chamber to flow out of the first opening and enter the degassing chamber from the second opening, and enabling the insulating oil to flow in a circulating mode in an inlet-outlet mode, wherein in the circulating process in the degassing chamber, gas in the insulating oil can be pumped into the degassing chamber under the influence of a negative pressure environment;
4. collecting gas: stopping the second oil pump, closing the second valve, the third valve and the fourth valve, opening the first valve and the fifth valve, starting the first oil pump, enabling new insulating oil in the transformer oil tank to enter the degassing chamber, and pressing gas desorbed from the degassing chamber into the gas collection box through the fourth pipeline and the fifth pipeline to finish the collection of the gas.
Therefore, the vacuum degree in the vacuum pump direct control degasification chamber is not required to be passed through again to this application, the vacuum pump of high accuracy need not to adopt again, when having saved the degasification cost, has improved the precision of degasification, has solved that current vacuum degassing method requires highly to the precision of vacuum pump and valve, causes use cost height, and the technical problem that the measurement accuracy that just degasses is low.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of an insulating oil degassing apparatus according to an embodiment of the present application;
wherein the reference numerals are: degassing chamber 100, first pipe 1, second pipe 2, third pipe 3, fourth pipe 4, fifth pipe 5, sixth pipe 6, first opening 7, second opening 8, third opening 9, shower nozzle 10, first valve 11, second valve 12, third valve 13, fourth valve 14, fifth valve 15, sixth valve 16, gas collection box 17, heating element 18, liquid level sensor 19, temperature sensor 20, first oil pump 21, second oil pump 22, pressure sensor 23.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
For the sake of easy understanding, referring to fig. 1, fig. 1 is a schematic structural diagram of an insulating oil degassing apparatus according to an embodiment of the present invention.
The application provides an insulating oil degassing device, which comprises a degassing chamber 100, a first pipeline 1, a second pipeline 2, a third pipeline 3, a fourth pipeline 4 and a fifth pipeline 5;
a first opening 7 is formed in the lower part of the degassing chamber 100, a starting port of the first pipeline 1 is communicated with the first opening 7, and a tail end port of the first pipeline 1 is communicated with a transformer oil tank;
the first pipeline 1 is provided with a first oil pump 21 and a first valve 11;
a second opening 8 is formed in the upper part of the degassing chamber 100, the end port of the third pipeline 3 is communicated with the second opening 8, and the start port of the third pipeline 3 is communicated with the outside or a transformer oil tank;
the start port of the second pipeline 2 is communicated with the first pipeline 1, the start port of the second pipeline is positioned between the first valve 11 and the first opening 7, the end port of the second pipeline 2 is communicated with the third pipeline 3, and the end port of the second pipeline 2 is communicated with the third pipeline 3;
a second oil pump 22 is arranged on the second pipeline 2;
a second valve 12 and a third valve 13 are connected to the third pipeline 3, the second valve 12 is positioned between the start port of the third pipeline 3 and the end port of the second pipeline 2, and the third valve 13 is positioned at the end port of the third pipeline;
the upper part of the degassing chamber 100 is provided with a third opening 9, a start port of the fourth pipeline 4 is communicated with the third opening 9, and a tail end port of the fourth pipeline 4 is communicated with the outside;
a fourth valve 14 is connected to the fourth pipeline 4;
the starting port of the fifth pipeline 5 is communicated with the fourth pipeline 4, the starting port of the fifth pipeline 5 is positioned between the starting port of the fourth pipeline 4 and the fourth valve 14, and the tail end port of the fifth pipeline 5 is connected with a gas collecting box 17;
a fifth valve 15 is connected to the fifth pipe 5.
It should be noted that the first pipeline 1, the second pipeline 2, the third pipeline 3, the fourth pipeline 4 and the fifth pipeline 5 are commonly used oil pipes and can have a certain compressive strength, the first valve 11, the second valve 12, the third valve 13, the fourth valve 14 and the fifth valve 15 can be common automatic or manual opening and closing penalties, preferably electromagnetic valves, so as to realize automatic and flexible opening and closing, and the first oil pump 21 and the second oil pump 22 can be commonly used oil pumps;
the first opening 7 is opened at the lower part of the degassing chamber 100, preferably at the bottom of the degassing chamber 100, so that the insulating oil in the degassing chamber 100 can be better discharged, the second opening 8 and the third opening 9 are opened at the upper part of the degassing chamber 100, preferably at the top of the degassing chamber 100, the gas collecting box 17 is a common collecting device, the outlet of the gas collecting box 17 can be connected with the sixth pipeline 6, the degassing detection device is connected through the sixth pipeline 6, a sixth valve 16 can be arranged on the sixth pipeline 6, so that the sixth pipeline 6 can be closed by the re-gas collecting box 17 in a collecting manner, so that the inside of the gas collecting box 17 can be collected, and after the gas is collected by the re-gas collecting box 17, the sixth valve 16 is opened, so that the gas is directly introduced into the degassing detection device through the sixth pipeline 6 for detection.
The insulating oil degassing device provided by the application comprises four steps in the using process:
1. gas washing: opening the first valve 11, the second valve 12, the third valve 13 and the fourth valve 14 and starting the first oil pump 21 and the second oil pump 22, keeping the other valves closed in the fifth valve 15, allowing a part of the insulating oil in the transformer tank to enter the degassing chamber 100 through the first opening 7 by the first oil pump 21 and a part of the insulating oil in the transformer tank to enter the degassing chamber 100 through the second opening 8 by the second oil pump 22, filling the degassing chamber 100 with the insulating oil and allowing the inside air to be completely discharged from the fourth pipe 4;
2. fixed amount of degassed oil: closing the first valve 11, the second valve 12, the fourth valve 14 and the fifth valve 15, stopping the first oil pump 21, opening the third valve 13, keeping the second oil pump 22 running, discharging a part of air in the degassing chamber 100 from the end port of the third pipeline 3, controlling the vacuum degree according to the liquid level reduction amount in the degassing chamber 100, and making the degassing chamber 100 in a negative pressure state;
3. and (3) cyclic degassing: closing the first valve 11, the third valve 13, the fourth valve 14 and the fifth valve 15, opening the second valve 12, stopping the first oil pump 21, starting the second oil pump 22, so that the insulating oil in the degassing chamber 100 flows out of the first opening 7 and enters from the second opening 8, and flows in and out in a circulating manner, and during circulation in the degassing chamber 100, gas in the insulating oil is pumped out into the degassing chamber 100 under the influence of a negative pressure environment;
4. collecting gas: stopping the second oil pump 22, closing the second valve 12, the third valve 13 and the fourth valve 14, opening the first valve 11 and the fifth valve 15, starting the first oil pump 21, allowing new insulating oil in the transformer oil tank to enter the degassing chamber 100, and pressing the gas removed from the degassing chamber 100 into the gas collecting box 17 through the fourth pipeline 4 and the fifth pipeline 5, thereby completing the collection of the gas.
Therefore, the vacuum degree in the degassing chamber 100 is not required to be directly controlled by the vacuum pump, the high-precision vacuum pump is not required to be adopted, the degassing cost is saved, the degassing precision is improved, and the technical problems that the use cost is high and the degassing measurement precision is low due to high precision requirements of the vacuum pump and a valve in the existing vacuum degassing method are solved.
As a further improvement, a spray head 10 is disposed on the second opening 8 of the insulating oil degassing device provided in the embodiment of the present application, and the spray head 10 is used for spraying the insulating oil in a spray form in the degassing chamber 100, that is, spraying the insulating oil in the third pipe 3 into the degassing chamber 100 in a spray form, so that the gas in the insulating oil is more favorably precipitated under a negative pressure environment, and the degassing efficiency is improved.
As a further improvement, the degassing chamber 100 of the insulating oil degassing device provided in the embodiment of the present application is provided with the heating element 18, and the heating element 18 covers the wall body of the degassing chamber 100 in a coating manner, so as to heat the degassing chamber 100 in all directions, improve the heating efficiency, and by controlling the heating temperature, the degassing efficiency of the insulating oil at different temperatures can be effectively tested, and the heating temperature can be heated to 80 ℃ at most, and the heating element 18 can be flexibly detached and replaced.
As a further improvement, the degassing chamber 100 of the insulating oil degassing device provided in the embodiment of the present application is provided with a liquid level sensor 19 inside, the liquid level sensor 19 is used for detecting the liquid level height in the degassing chamber 100, preferably, the number of the liquid level sensors 19 may be multiple, multiple liquid level sensors 19 are located at different heights in the degassing chamber 100, multiple liquid level sensors 19 are used for detecting different liquid level heights, and the number of the liquid level sensors 19 is two in the embodiment.
As a further improvement, a temperature sensor 20 is arranged inside the degassing chamber 100 of the insulating oil degassing device provided in the embodiments of the present application, the temperature sensor 20 is used for measuring the temperature inside the degassing chamber 100, the temperature sensor 20 is preferably a platinum resistance temperature measuring element, and a digital display meter can be connected outside the temperature sensor 20 to facilitate reading of temperature data by a worker and replacement of devices.
As a further improvement, a pressure sensor 23 is arranged inside the degassing chamber 100 of the insulating oil degassing device provided in the embodiment of the present application, the pressure sensor 23 is used for detecting the internal pressure of the degassing chamber 100, and the pressure sensor 23 can be flexibly replaced.
As a further improvement, the first valve 11, the second valve 12, the third valve 13, the fourth valve 14 and the fifth valve 15 of the insulating oil degassing device provided in the embodiment of the present application are all one-way conduction electromagnetic valves; the conduction directions of the first valve 11, the second valve 12, the fourth valve 14 and the fifth valve 15 are from the initial port to the tail end port of the pipeline; the third valve 13 is opened from the end port to the start port of the third pipe 3. The adoption of the one-way conduction electromagnetic valve is favorable for avoiding the backflow of the insulating oil in each pipeline and influencing the detected data.
As a further improvement, the first oil pump 21 of the insulating oil degassing device provided in the embodiment of the present application is a one-way conduction oil pump, and the first oil pump 21 is located between the start port of the second pipeline 2 and the first valve 11; the first oil pump 21 is conducted from the start port to the end port of the first pipe 1, thereby advantageously preventing the insulating oil from flowing backward in the pipe.
As a further improvement, the second oil pump 22 of the insulating oil degassing device provided in the embodiment of the present application is a one-way conduction oil pump; the second oil pump 22 is conducted in the direction from the start port to the end port of the second pipe 2, thereby advantageously preventing the insulating oil from flowing backward in the pipe.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (9)
1. An insulating oil degassing apparatus, comprising: a degassing chamber, a first pipe, a second pipe, a third pipe, a fourth pipe, and a fifth pipe;
a first opening is formed in the lower part of the degassing chamber, a starting port of the first pipeline is communicated with the first opening, and a tail end port of the first pipeline is communicated with a transformer oil tank;
the first pipeline is provided with a first oil pump and a first valve;
a second opening is formed in the upper part of the degassing chamber, a tail end port of the third pipeline is communicated with the second opening, and a starting port of the third pipeline is communicated with the outside or a transformer oil tank;
the start port of the second pipeline is communicated with the first pipeline, the start port of the second pipeline is positioned between the first valve and the first opening, the end port of the second pipeline is communicated with the third pipeline, and the end port of the second pipeline is communicated with the third pipeline;
a second oil pump is arranged on the second pipeline;
a second valve and a third valve are connected to the third pipeline, the second valve is located between a start port of the third pipeline and a tail end port of the second pipeline, and the third valve is located at the tail end port of the third pipeline;
a third opening is formed in the upper part of the degassing chamber, a starting port of the fourth pipeline is communicated with the third opening, and a tail end port of the fourth pipeline is communicated with the outside;
a fourth valve is connected to the fourth pipeline;
a start port of the fifth pipeline is communicated with the fourth pipeline, the start port of the fifth pipeline is positioned between the start port of the fourth pipeline and the fourth valve, and a tail end port of the fifth pipeline is connected with a gas collecting box;
and a fifth valve is connected to the fifth pipeline.
2. The insulating oil degassing apparatus according to claim 1, wherein a shower head is provided on the second opening;
the spray head is used for spraying the insulating oil in a spray manner in the degassing chamber.
3. The insulating oil degassing apparatus according to claim 1, wherein a liquid level sensor is provided inside the degassing chamber.
4. The insulating oil degassing apparatus according to claim 3, wherein said level sensor is plural;
a plurality of the level sensors are located at different heights inside the degassing chamber.
5. The insulating oil degassing apparatus according to claim 1, wherein a temperature sensor is provided inside the degassing chamber.
6. The insulating oil degassing apparatus according to claim 1, wherein a pressure sensor is provided inside the degassing chamber.
7. The insulating oil degassing apparatus according to claim 1, wherein the first valve, the second valve, the third valve, the fourth valve, and the fifth valve are all one-way conduction solenoid valves;
the conduction directions of the first valve, the second valve, the fourth valve and the fifth valve are from a starting port to a tail end port of the pipeline;
the conducting direction of the third valve is from the tail end port to the initial port of the third pipeline.
8. The insulating oil degassing apparatus according to claim 1, wherein the first oil pump is a one-way conduction oil pump;
the first oil pump is positioned between the start port of the second pipeline and the first valve;
the first oil pump is conducted from a start port to a tail port of the first pipeline.
9. The insulating oil degassing apparatus according to claim 1, wherein the second oil pump is a one-way conduction oil pump;
the second oil pump is conducted from a start port to a tail port of the second pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120645325.0U CN214861383U (en) | 2021-03-30 | 2021-03-30 | Insulating oil degassing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120645325.0U CN214861383U (en) | 2021-03-30 | 2021-03-30 | Insulating oil degassing device |
Publications (1)
| Publication Number | Publication Date |
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| CN214861383U true CN214861383U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120645325.0U Active CN214861383U (en) | 2021-03-30 | 2021-03-30 | Insulating oil degassing device |
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|---|---|
| CN (1) | CN214861383U (en) |
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2021
- 2021-03-30 CN CN202120645325.0U patent/CN214861383U/en active Active
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